import java.util.Scanner;
public class ying {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入第一个长：");
        int len1 = sc.nextInt();
        System.out.println("请输入第一个宽：");
        int wei1 = sc.nextInt();
        System.out.println("请输入第二个长：");
        int len2 = sc.nextInt();
        System.out.println("请输入第二个宽：");
        int wei2 = sc.nextInt();
    }
    public static int area (int len1, int wei1, int len2, int wei2) {
        return len1 * wei1;
    }

}
